CN202545906U - Quick action emergency valve - Google Patents

Quick action emergency valve Download PDF

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Publication number
CN202545906U
CN202545906U CN2012201519534U CN201220151953U CN202545906U CN 202545906 U CN202545906 U CN 202545906U CN 2012201519534 U CN2012201519534 U CN 2012201519534U CN 201220151953 U CN201220151953 U CN 201220151953U CN 202545906 U CN202545906 U CN 202545906U
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CN
China
Prior art keywords
valve
case
emergeny cutoff
cutoff valves
final controlling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012201519534U
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Chinese (zh)
Inventor
章建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU HUATAI GAS EQUIPMENT Co Ltd
Original Assignee
CHENGDU HUATAI GAS EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU HUATAI GAS EQUIPMENT Co Ltd filed Critical CHENGDU HUATAI GAS EQUIPMENT Co Ltd
Priority to CN2012201519534U priority Critical patent/CN202545906U/en
Application granted granted Critical
Publication of CN202545906U publication Critical patent/CN202545906U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a quick action emergency valve which comprises a valve body, wherein a valve cover is arranged on the valve body, a mechanism box is arranged on the valve cover, an electromagnetic control executive component is arranged on one side of the mechanism box, and an air pressure monitoring executive component is arranged on the other side of the mechanism box; a mechanical stopping component is arranged on the upper end in the mechanism box; a slider pull bar component is also arranged in the mechanism box; the lower end of the slider pull bar component penetrates through the valve cover and is connected with a stopping valve head which is arranged in the valve; a main valve spring is arranged between the stopping valve head and the valve cover; a valve plug is arranged on the stopping valve head; and an inner bypass is arranged on the valve plug. The quick action emergency valve realizes monitoring for fuel pressure in electric and pneumatic manners, can avoid the misoperation caused by environment vibration, and realizes accurate control f outlet pressure (overpressure and underpressure) of the gas pressure regulator, the gas leakage and the like, and can cut off remote control in specific conditions (such as over-high leakage).

Description

A kind of Emergeny Cutoff Valves
Technical field
The utility model belongs to gas transmission and distribution equipment voltage adjusting device technical field, relates to a kind of cut-off valve with safety protection function, is specifically related to a kind of Emergeny Cutoff Valves.
Background technique
In gas transmission and distribution system; For preventing personal injury, device damage or because the gas of escaping or the caused leakage of breaking of pressure limit parts; When a pressure governor is installed, suitable overpressure protector need be installed, also protect all upstream devices to avoid the pressure governor caused damage of losing efficacy simultaneously.Emergeny Cutoff Valves is as the device of protection gas pressure regulator, governor and combustion gas user security, and when the outlet pressure of gas was higher or lower than corresponding setting pressure, action was to cut off air-flow rapidly, and the accident that prevents takes place.Existing cut-off valve is with the self-powering type shut-off means of gas pressure regulator, governor outlet pressure control, through supervisory device the gas pressure regulator, governor outlet pressure is monitored, and when the gas pressure regulator, governor outlet pressure surpasses setting value, promotes the shutdown mechanism action, realizes cutting off.This class formation adopts control push rod with the mechanical control method that variation in pressure progressively moves, and exists threshold state by misoperation and the not high problem of control accuracy that ambient vibration causes, is difficult to realize that leakage rate exceeds standard wait the requirement that needs the Remote cut-out simultaneously.
The model utility content
The technical problem that the utility model will solve provides a kind of Emergeny Cutoff Valves; Be subject to ambient vibration and cause misoperation and the not high problem of control accuracy to solve existing cut-off valve, satisfy under the specified conditions requirement that (exceed standard like leakage rate etc.) cuts off Remote simultaneously.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is: a kind of Emergeny Cutoff Valves is provided, it is characterized in that: comprise valve body; Said valve body is provided with valve gap; Said valve gap is provided with mechanism case; Said mechanism case one side is provided with the Electromagnetic Control power unit, and opposite side is provided with the air pressure monitor power unit; Said mechanism case inner upper end is provided with the mechanical cutting parts; Also be provided with the slide block tie component in the said mechanism case; Cut-out valve head in said slide block tie component bottom is passed valve gap and is arranged on valve body is connected; Be provided with main spool spring between said cut-out valve head and the valve gap; Said cut-out valve head is provided with spool; Said spool is provided with internal bypass.
Said mechanical cutting parts comprise fixed plate and are arranged on limiting stopper, limiting board and the restoring board on the fixed plate; Said mechanical cutting parts are fixedly connected with mechanism case through fixed plate; One torsion spring is set on the said limiting board; Said limiting stopper one end is connected with restoring board through extension spring, and the limiting stopper the other end is provided with positive stop hook.
Said Electromagnetic Control power unit comprises electromagnet; Said electromagnet one end is provided with anti-explosion terminal box; Be provided with relay switch in the said anti-explosion terminal box; Said electromagnet comprises the magnet shell, and magnet shell aperture end is provided with the magnet cover plate; Said magnet cover plate is fixedly connected with mechanism case; Be provided with coil rack in the said magnet shell; Be wound with electromagnetic coil on the said coil rack; The initial and end two ends of said electromagnetic coil are passed anti-explosion terminal box and are connected with relay switch; Be provided with moving iron core push rod in the said coil rack; Be provided with Returnning spring between said moving iron core push rod and the magnet cover plate.
Said air pressure monitor power unit comprises the final controlling element housing; Said final controlling element housing is fixedly connected with mechanism case; Said final controlling element housing one end is connected with the final controlling element lid, and the other end is provided with the adjusting plug screw; Be provided with movable lance, epithelium and pallet in the said final controlling element housing; Said movable lance, epithelium and pallet combine as a whole, and epithelium is arranged between movable lance and the pallet; Be provided with the cut-out spring between said adjusting plug screw and the movable lance; Said final controlling element covers and is provided with the vent that links to each other with pressure governor outlet pressure signal tube.
Also be provided with stop screw in the said mechanism case.The slide block of said slide block tie component setting is placed in the chute of mechanism case, and is connected with positive stop hook.Also be provided with Sealing on the said cut-out valve head.Said adjusting plug screw is connected with the final controlling element housing through screw thread; Said adjusting plug screw is provided with locking nut.Said movable lance, epithelium and pallet combine as a whole through screw thread.Said relay switch is connected with the PLC programmable logic controller (PLC).
The Emergeny Cutoff Valves that the utility model provides is combined in Electromagnetic Control power unit and air pressure monitor power unit on the same valve; Realization is to electronic, the pneumatic dual mode monitoring of gaseous-pressure; The misoperation that not only can avoid ambient vibration to cause; Realization is to many-sided accurate controls such as gas pressure regulator, governor outlet pressure (superpressure and under-voltage), gas leakage amounts, can also satisfy under the specified conditions requirement that (exceed standard like leakage rate etc.) cuts off Remote.
Description of drawings
Fig. 1 is the sectional drawing of Emergeny Cutoff Valves;
Fig. 2 is that Emergeny Cutoff Valves is at the sectional drawing that cuts off closed condition.
Wherein, 1, anti-explosion terminal box; 2, relay switch; 3, magnet shell; 4, coil rack; 5, electromagnetic coil; 6, moving iron core push rod; 7, Returnning spring; 8, magnet cover plate; 9, fixed plate; 10, limiting stopper; 101, limiting stopper rotating center; 11, limiting board; 111, go up finger; 112, limiting board rotating center; 113, following finger; 12, torsion spring; 13, positive stop hook; 131, positive stop hook rotating center; 14, slide block tie component; 15, mechanism case; 16, restoring board; 161, restoring board rotating center; 17, extension spring; 18, locking nut; 19, regulate plug screw; 20, cut off spring; 21, movable lance; 22, epithelium; 23, pallet; 24, final controlling element lid; 25, final controlling element housing; 26, stop screw; 27, valve gap; 28, main spool spring; 29, cut off valve head; 30, valve body; 31, Sealing; 32, spool; 33, valve port; 34, internal bypass.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is carried out detailed description.
Like Fig. 1 and shown in Figure 2, this Emergeny Cutoff Valves comprises valve body 30, is provided with fuel gas inlet, outlet and valve seat; Valve body 30 is provided with valve gap 27; Valve gap 27 is provided with mechanism case 15; Mechanism case 15 1 sides are provided with the Electromagnetic Control power unit, and opposite side is provided with the air pressure monitor power unit; Mechanism case 15 inner upper end are provided with the mechanical cutting parts; Also be provided with slide block tie component 14 in the mechanism case 15; The slide block that slide block tie component 14 is provided with is placed in the chute of mechanism case 15, and is connected with positive stop hook 13; Cut-out valve head 29 in slide block tie component 14 bottoms are passed valve gap 27 and are arranged on valve body 30 is connected; Cut off between valve head 29 and the valve gap 27 and be provided with main spool spring 28; Cut off valve head 29 and be provided with spool 32; Cut off on the valve head 29 and also be provided with Sealing 31; Spool 32 is provided with internal bypass 34, balance pressure when resetting.Also be provided with the angle of stop screw 26 in the mechanism case 15 in order to 13 rotations of restriction positive stop hook.
The mechanical cutting parts comprise fixed plate 9 and are arranged on limiting stopper 10, limiting board 11 and the restoring board 16 on the fixed plate 9; The mechanical cutting parts are fixedly connected with mechanism case 15 through fixed plate 9; One torsion spring 12 is set on the limiting board 11; Limiting stopper 10 1 ends are connected with restoring board 16 through extension spring 17, and limiting stopper 10 the other ends are provided with positive stop hook 13.Torsion spring 12 produces tightening force so that snapping is reliable with extension spring 17.Limiting board 11 is provided with finger 111 and following finger 113 stirring a little as movable lance 21.Limiting stopper 10, limiting board 11, positive stop hook 13 and restoring board 16 are that rotate at the center with limiting stopper rotating center 101, limiting board rotating center 112, positive stop hook rotating center 131 and restoring board rotating center 161 respectively.
The Electromagnetic Control power unit comprises electromagnet; Electromagnet one end is provided with anti-explosion terminal box 1; Be provided with relay switch 2 in the anti-explosion terminal box 1; Electromagnet comprises magnet shell 3, and magnet shell 3 opening ends are provided with magnet cover plate 8; Magnet cover plate 8 is fixedly connected with mechanism case 15; Be provided with coil rack 4 in the magnet shell 3; Be wound with electromagnetic coil 5 on the coil rack 4; The initial and end two ends of electromagnetic coil 5 are passed anti-explosion terminal box 1 and are connected with relay switch 2; Be provided with moving iron core push rod 6 in the coil rack 4; Be provided with Returnning spring 7 between moving iron core push rod 6 and the magnet cover plate 8.Returnning spring 7 promotes moving iron core push rod 6 returns in electromagnet outage back.Relay switch 2 is connected with the PLC programmable logic controller (PLC).
The air pressure monitor power unit comprises final controlling element housing 25; Final controlling element housing 25 is fixedly connected with mechanism case 15; Final controlling element housing 25 1 ends are connected with final controlling element lid 24, and the other end is provided with regulates plug screw 19; Regulating plug screw 19 is connected with final controlling element housing 25 through screw thread; Regulate plug screw 19 and be provided with locking nut 18; Be provided with movable lance 21, epithelium 22 and pallet 23 in the final controlling element housing 25; Movable lance 21, epithelium 22 and pallet 23 combine as a whole, and epithelium 22 is arranged between movable lance 21 and the pallet 23; Further, movable lance 21, epithelium 22 and pallet 23 combine as a whole through screw thread.Form pressure chamber between epithelium 22 and the final controlling element lid 24.Regulate to be provided with between plug screw 19 and the movable lance 21 and cut off spring 20; Final controlling element lid 24 is provided with the vent that links to each other with pressure governor outlet pressure signal tube.Can regulate the decrement of cutting off spring 20 through adjusting plug screw 19 and come Regulation spring power, thus adjustment cut-out pressure value.
Emergeny Cutoff Valves is in the scope that the index of required controls such as combustion gas pressure regulation outlet pressure, gas leakage amount is requiring, and valve port 33 is normally opened.Air-flow flows into from valve body 30 imports, through valve port 33 and the opening that cuts off valve head 29, flows out from valve body 30 outlets, flows with normal flow rate.At this moment, electromagnet is in off-position, and its moving iron core push rod 6 is in position of rest.Air pressure monitor power unit pressure chamber pressure is in state of equilibrium with the power of cutting off spring force, and its movable lance 21 is in static position.The mechanical cutting parts are in static relative position: limiting board 11 and restoring board 16 mutual snappings; Limiting stopper 10 and positive stop hook 13 mutual snappings, and under the active force of torsion spring 12 and extension spring 17, the reliable snapping of each parts.Be connected slide block tie component 14 on the positive stop hook 13 and will cut off valve head 29 and lift and be suspended on fully open position, this moment, main spool spring 28 was in compression,metal-to-metal position.
Emergeny Cutoff Valves is when indexs such as gas pressure regulator, governor outlet pressure, gas leakage amount reach or surpass the setting value of PLC programmable logic controller (PLC) setting; Through the signal trigger engage relay switch 2 of PLC, make the energising of Electromagnetic Control power unit, moving iron core push rod 6 moves forward under the electromagnetic force effect fast; Promote the last finger 111 of limiting board 11; Limiting board 11 is clockwise rotated, and limiting board 11 breaks away from restoring board 16, and restoring board 16 clockwise rotates under extension spring 17 effects; And then limiting stopper 10 clockwise rotates, and causes limiting stopper 10 and positive stop hook 13 to break away from.Positive stop hook 13 is in inhour rotation rapidly under the pulling of gravity and slide block tie component 14, and slide block tie component 14 moves down, and cuts off valve head 29 cease to binds, under deadweight and main spool spring 28 effects, moves down the cut-out air-flow fast.Sealing 31 fits tightly with valve port 33 inclined-planes, thereby closed gas flow is realized safety protection fully.
When the gas pressure regulator, governor outlet pressure changes; Air pressure monitor power unit pressure in pressure cavity is broken with cut-out spring force balance; Movable lance 21 moves to the little direction of power, and as when the outlet pressure superpressure, unbalanced force promotion activity lance 21 moves; Movable lance 21 front ends move to following finger 113 places of limiting board 11 and promote limiting board 11 and clockwise rotate; Limiting board 11 and restoring board 16 are broken away from, and initiation restoring board 16, limiting stopper 10, positive stop hook 13 interlocks realize cutting off, and the cutting-off process that cutting-off process and above-mentioned Electromagnetic Control power unit are carried out is basic identical.
It is to be noted that the above only is the preferred implementation of the utility model; For those skilled in the art; On the basis that does not break away from principle; Be easy to the utility model is carried out some improvement and modification, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (10)

1. an Emergeny Cutoff Valves is characterized in that: comprise valve body (30); Said valve body (30) is provided with valve gap (27); Said valve gap (27) is provided with mechanism case (15); Said mechanism case (15) one sides are provided with the Electromagnetic Control power unit, and opposite side is provided with the air pressure monitor power unit; Said mechanism case (15) inner upper end is provided with the mechanical cutting parts; Also be provided with slide block tie component (14) in the said mechanism case (15); Cut-out valve head (29) in said slide block tie component (14) bottom is passed valve gap (27) and is arranged on valve body (30) is connected; Be provided with main spool spring (28) between said cut-out valve head (29) and the valve gap (27); Said cut-out valve head (29) is provided with spool (32); Said spool (32) is provided with internal bypass (34).
2. Emergeny Cutoff Valves according to claim 1 is characterized in that: said mechanical cutting parts comprise fixed plate (9) and are arranged on limiting stopper (10), limiting board (11) and the restoring board (16) on the fixed plate (9); Said mechanical cutting parts are fixedly connected with mechanism case (15) through fixed plate (9); One torsion spring (12) is set on the said limiting board (11); Said limiting stopper (10) one ends are connected with restoring board (16) through extension spring (17), and limiting stopper (10) the other end is provided with positive stop hook (13).
3. Emergeny Cutoff Valves according to claim 1 is characterized in that: said Electromagnetic Control power unit comprises electromagnet; Said electromagnet one end is provided with anti-explosion terminal box (1); Be provided with relay switch (2) in the said anti-explosion terminal box (1); Said electromagnet comprises magnet shell (3), and magnet shell (3) opening end is provided with magnet cover plate (8); Said magnet cover plate (8) is fixedly connected with mechanism case (15); Be provided with coil rack (4) in the said magnet shell (3); Be wound with electromagnetic coil (5) on the said coil rack (4); The initial and end two ends of said electromagnetic coil (5) are passed anti-explosion terminal box (1) and are connected with relay switch (2); Be provided with moving iron core push rod (6) in the said coil rack (4); Be provided with Returnning spring (7) between said moving iron core push rod (6) and the magnet cover plate (8).
4. Emergeny Cutoff Valves according to claim 1 is characterized in that: said air pressure monitor power unit comprises final controlling element housing (25); Said final controlling element housing (25) is fixedly connected with mechanism case (15); Said final controlling element housing (25) one ends are connected with final controlling element lid (24), and the other end is provided with regulates plug screw (19); Be provided with movable lance (21), epithelium (22) and pallet (23) in the said final controlling element housing (25); Said movable lance (21), epithelium (22) and pallet (23) combine as a whole, and epithelium (22) is arranged between movable lance (21) and the pallet (23); Be provided with between said adjusting plug screw (19) and the movable lance (21) and cut off spring (20); Said final controlling element lid (24) is provided with the vent that links to each other with pressure governor outlet pressure signal tube.
5. according to claim 1,3 or 4 described Emergeny Cutoff Valvess, it is characterized in that: also be provided with stop screw (26) in the said mechanism case (15).
6. Emergeny Cutoff Valves according to claim 1 is characterized in that: the slide block that said slide block tie component (14) is provided with is placed in the chute of mechanism case (15), and is connected with positive stop hook (13).
7. Emergeny Cutoff Valves according to claim 1 is characterized in that: also be provided with Sealing (31) on the said cut-out valve head (29).
8. Emergeny Cutoff Valves according to claim 4 is characterized in that: said adjusting plug screw (19) is connected with final controlling element housing (25) through screw thread; Said adjusting plug screw (19) is provided with locking nut (18).
9. Emergeny Cutoff Valves according to claim 4 is characterized in that: said movable lance (21), epithelium (22) and pallet (23) combine as a whole through screw thread.
10. Emergeny Cutoff Valves according to claim 3 is characterized in that: said relay switch (2) is connected with the PLC programmable logic controller (PLC).
CN2012201519534U 2012-04-12 2012-04-12 Quick action emergency valve Expired - Fee Related CN202545906U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201519534U CN202545906U (en) 2012-04-12 2012-04-12 Quick action emergency valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201519534U CN202545906U (en) 2012-04-12 2012-04-12 Quick action emergency valve

Publications (1)

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CN202545906U true CN202545906U (en) 2012-11-21

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Family Applications (1)

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CN2012201519534U Expired - Fee Related CN202545906U (en) 2012-04-12 2012-04-12 Quick action emergency valve

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CN (1) CN202545906U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644341A (en) * 2013-12-26 2014-03-19 谷红军 Cutting off type indoor pressure regulator
CN103711956A (en) * 2013-12-30 2014-04-09 乐山市山鹰模具有限责任公司 Automatic emergency shut-off valve
CN104791526A (en) * 2015-03-12 2015-07-22 西安海智机电设备有限公司 Mechanical type ultra-high pressure and ultra-low pressure urgent intercepting valve
CN105135022A (en) * 2015-09-09 2015-12-09 江苏英瑞环保科技有限公司 High-temperature flue gas shut-off valve
CN105135011A (en) * 2015-09-21 2015-12-09 西南石油大学 Mechanical safety block valve device
CN105605267A (en) * 2015-11-16 2016-05-25 乐山市山鹰模具有限责任公司 Gas pressure regulator achieving direct action through spring load
CN104864136B (en) * 2015-04-15 2017-06-16 中国石油大学(北京) A kind of Electromagnetic Control quick action emergency valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644341A (en) * 2013-12-26 2014-03-19 谷红军 Cutting off type indoor pressure regulator
CN103711956A (en) * 2013-12-30 2014-04-09 乐山市山鹰模具有限责任公司 Automatic emergency shut-off valve
CN104791526A (en) * 2015-03-12 2015-07-22 西安海智机电设备有限公司 Mechanical type ultra-high pressure and ultra-low pressure urgent intercepting valve
CN104791526B (en) * 2015-03-12 2017-06-13 西安海智机电设备有限公司 The mechanical super-pressure urgent block valve of ultralow pressure
CN104864136B (en) * 2015-04-15 2017-06-16 中国石油大学(北京) A kind of Electromagnetic Control quick action emergency valve
CN105135022A (en) * 2015-09-09 2015-12-09 江苏英瑞环保科技有限公司 High-temperature flue gas shut-off valve
CN105135011A (en) * 2015-09-21 2015-12-09 西南石油大学 Mechanical safety block valve device
CN105605267A (en) * 2015-11-16 2016-05-25 乐山市山鹰模具有限责任公司 Gas pressure regulator achieving direct action through spring load

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20150412